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vp8: fix memset() crossing array boundary 

Indexing across array boundaries is not allowed by C99.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2012-10-26 21:43:55 +01:00
parent c4cccc8d3f
commit 4471a24207
1 changed files with 2 additions and 1 deletions
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3
libavcodec/vp8.c
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@ -1964,7 +1964,8 @@ static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
// top edge of 127 for intra prediction
if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
s->top_border[0][15] = s->top_border[0][23] = 127;
memset(s->top_border[1]-1, 127, s->mb_width*sizeof(*s->top_border)+1);
s->top_border[0][31] = 127;
memset(s->top_border[1], 127, s->mb_width*sizeof(*s->top_border));
}
memset(s->ref_count, 0, sizeof(s->ref_count));